Package-level declarations
Types
Contains an attribution to be displayed when the map is shown to a user.
An array containing the longitude and latitude of the southwest and northeast corners of the source's bounding box in the following order: [sw.lng, sw.lat, ne.lng, ne.lat]
. When this property is included in a source, no tiles outside of the given bounds are requested by Mapbox GL.
Size of the tile buffer on each side. A value of 0 produces no buffer. A value of 512 produces a buffer as wide as the tile itself. Larger values produce fewer rendering artifacts near tile edges and slower performance.
If the data is a collection of point features, setting this to true clusters the points by radius into groups. Cluster groups become new Point
features in the source with additional properties: cluster
Is true
if the point is a cluster cluster_id
A unqiue id for the cluster to be used in conjunction with the cluster inspection methods point_count
Number of original points grouped into this cluster point_count_abbreviated
An abbreviated point count
Max zoom on which to cluster points if clustering is enabled. Defaults to one zoom less than maxzoom (so that last zoom features are not clustered). Clusters are re-evaluated at integer zoom levels so setting clusterMaxZoom to 14 means the clusters will be displayed until z15.
An object defining custom properties on the generated clusters if clustering is enabled, aggregating values from clustered points. Has the form {"property_name": [operator, map_expression]}
. operator
is any expression function that accepts at least 2 operands (e.g. "+"
or "max"
) — it accumulates the property value from clusters/points the cluster contains; map_expression
produces the value of a single point. Example: {"sum": ["+", ["get", "scalerank"]]}
. For more advanced use cases, in place of operator
, you can use a custom reduce expression that references a special ["accumulated"]
value, e.g.: {"sum": [["+", ["accumulated"], ["get", "sum"]], ["get", "scalerank"]]}
Radius of each cluster if clustering is enabled. A value of 512 indicates a radius equal to the width of a tile.
Corners of image specified in longitude, latitude pairs. Note: When using globe projection, the image will be centered at the North or South Pole in the respective hemisphere if the average latitude value exceeds 85 degrees or falls below -85 degrees.
The encoding used by this source. Mapbox Terrain RGB is used by default
Whether to generate ids for the geojson features. When enabled, the feature.id
property will be auto assigned based on its index in the features
array, over-writing any previous values.
The GeoJSONData that drives the GeoJsonSourceState.
A GeoJSON data source.
An image data source.
Whether to calculate line distance metrics. This is required for line layers that specify line-gradient
values.
When a set of tiles for a current zoom level is being rendered and some of the ideal tiles that cover the screen are not yet loaded, parent tile could be used instead. This might introduce unwanted rendering side-effects, especially for raster tiles that are overscaled multiple times. This property sets the maximum limit for how much a parent tile can be overscaled.
Maximum zoom level for which tiles are available, as in the TileJSON spec. Data from tiles at the maxzoom are used when displaying the map at higher zoom levels.
Minimum tile update interval in seconds, which is used to throttle the tile update network requests. If the given source supports loading tiles from a server, sets the minimum tile update interval. Update network requests that are more frequent than the minimum tile update interval are suppressed.
Minimum zoom level for which tiles are available, as in the TileJSON spec.
When loading a map, if PrefetchZoomDelta is set to any number greater than 0, the map will first request a tile at zoom level lower than zoom - delta, but so that the zoom level is multiple of delta, in an attempt to display a full map at lower resolution as quick as possible. It will get clamped at the tile source minimum zoom. The default delta is 4.
A property to use as a feature id (for feature state). Either a property name, or an object of the form {<sourceLayer>: <propertyName>}
:
A raster array source
A RGB-encoded raster DEM source
Contains the description of the raster data layers and the bands contained within the tiles.
A raster tile source.
Influences the y direction of the tile coordinates. The global-mercator (aka Spherical Mercator) profile is assumed.
This property defines a source-specific resource budget, either in tile units or in megabytes. Whenever the tile cache goes over the defined limit, the least recently used tile will be evicted from the in-memory cache. Note that the current implementation does not take into account resources allocated by the visible tiles.
For the tiled sources, this property sets the tile network requests delay. The given delay comes in action only during an ongoing animation or gestures. It helps to avoid loading the transient tiles from the network and thus to avoid redundant network requests. Note that tile-network-requests-delay value is superseded with tile-requests-delay property value, if both are provided.
For the tiled sources, this property sets the tile requests delay. The given delay comes in action only during an ongoing animation or gestures. It helps to avoid loading, parsing and rendering of the transient tiles and thus to improve the rendering performance, especially on low-end devices.
An array of one or more tile source URLs, as in the TileJSON spec.
The minimum visual size to display tiles for this layer. Only configurable for raster layers.
Douglas-Peucker simplification tolerance (higher means simpler geometries and faster performance).
A URL to a TileJSON resource. Supported protocols are http:
, https:
, and mapbox://<Tileset ID>
.
A vector tile source.
A setting to determine whether a source's tiles are cached locally.
Functions
Create and rememberSaveable a GeoJsonSourceState using GeoJsonSourceState.Saver. init will be called when the GeoJsonSourceState is first created to configure its initial state.
Create and rememberSaveable a ImageSourceState using ImageSourceState.Saver. init will be called when the ImageSourceState is first created to configure its initial state.
Create and rememberSaveable a RasterArraySourceState using RasterArraySourceState.Saver. init will be called when the RasterArraySourceState is first created to configure its initial state.
Create and rememberSaveable a RasterDemSourceState using RasterDemSourceState.Saver. init will be called when the RasterDemSourceState is first created to configure its initial state.
Create and rememberSaveable a RasterSourceState using RasterSourceState.Saver. init will be called when the RasterSourceState is first created to configure its initial state.
Create and rememberSaveable a VectorSourceState using VectorSourceState.Saver. init will be called when the VectorSourceState is first created to configure its initial state.